Vintage McIntosh MC2505 // Solid-State Amplifier / Professionally Serviced

Back to where it all began. The McIntosh 2505 was the first piece to feature the big, blue meters that have become synonymous with the McIntosh name. This example is excellent condition sonically, as well as electronically. If you look closely, you can see the typical bubble around the bottom edge of the headphone jack. With fifty watts per channel, this iconic piece will drive nearly anything you could throw at it.

RESTORATIONS

• Full 30-point service check
• Cleaned controls, switches, and chassis

SPECS

Type   Solid-state stereo power amplifier

Power output   50 watts per channel into 8Ω (stereo)

Frequency response   20Hz to 20kHz

Total harmonic distortion   0.25%

Damping factor   10

Input sensitivity   0.5V

Signal to noise ratio   90dB

Speaker load impedance   4Ω to 16Ω

Dimensions   16"W x 5.4"H x 13"D

Weight   38 lbs.

LINER NOTES

The McIntosh MC2505 is a solid state power amplifier with a maximum power output of 100 watts RMS continuous, 50 watts per channel operating simultaneously, into 4 ohm, 8 ohm, or 16 ohm loads. Harmonic distortion is less than 0.25% at rated power output from 20Hz to 20,000Hz. Frequency range at rated output both channels; +0, 0.025dB, 20Hz through 20,000Hz. At around serial number 36K00, the model designation was changed to 2502-2, and can be visually identified by flush meters, and a gain knob that runs clockwise from -20dB to 0.